642-883 試験問題を無料オンラインアクセス

Which three BGP configuration groupings are supported on Cisco IOS XR Software?
(Choose three.)

• A.session-group
• B.peer-group
• C.neighbor-group
• D.af-group
• E.bgp-group
• F.as-group

Refer to the Cisco IOS-XR route policy exhibit.

Which statement correctly describes this route policy?

• A.If a route only has the 22:22 community, then no community will be added by the router.
• B.If a route contains the 11:11 or 44:44 community, the router adds the 55:55 community and continues. Additionally, if the same route also contains the 22:22 community, the router also adds another 77:77 community to the same route.
• C.If a route only has the 11:11 or 44:44 community, then no community will be added by the router.
• D.If a route has both the 11:11 and 22:22 communities (or 44:44 and 22:22), the router adds the 55:55 community only.
• E.The pass action is required after each of the set community statements to make this route policy functional.

A network has four routers running IS-IS with the NET addresses below:
R1 - 49.1234.1111.1111.1111.00
R2 - 49.1234.2222.2222.2222.00
R3 - 49.4321.1111.1111.1111.00
R4 - 49.4321.2222.2222.2222.00
How can IS-IS authentication be enabled between all routers?

• A.interface authentication with the command (config-if)#isis passwordword
• B.domain authentication with the command(config-rtr)#domain-passwordword
• C.area authentication with the command (config-if)#isisarea-passwordword
• D.domain authentication with the command (config-if)#isis domain-passwordword

For a Cisco IOS XR router, under which BGP configuration group can default-originate be added?

• A.session-group
• B.neighbor-group
• C.af-group
• D.peer-session template

Refer to the exhibit.

In AS 200, routers B and C are the exit points towards AS 100 and AS 300, respectively.
Router B is running Cisco IOS XR and Router C is running Cisco IOS XE. OSPF is used as
PE-CE routing protocol. In order to ensure proper reachability between AS 100 and AS
300, which two sets of configuration should an engineer apply? (Choose two.)

• A.Router B:router ospf 200redistribute bgp 200 subnets!router bgp 200address-family ipv4 vrf AS 100-AS300redistribute ospf 200
• B.Router B:router ospf 200 vrf AS 100-AS300redistribute bgp 200!router bgp 200vrf AS
  100-AS300address-family ipv4 unicastredistribute ospf 200
• C.Router C:router ospf 200 vrf AS100-AS300redistribute bgp 200 subnets!router bgp
  2 00vrf AS 100-AS300address-family ipv4unicastredistribute ospf 200
• D.Router C:router ospf 200redistribute bgp 200!router bgp 200address-family ipv4redistribute ospf 200 subnet
• E.Router C:router ospf 200 vrf AS100-AS300redistribute bgp 200 subnets!router bgp
  2 00address-family ipv4 vrf AS 100-AS300redistribute ospf 200
• F.Router B:router ospf 200redistribute bgp 200 subnets!router bgp 200address-family ipv4 unicastredistribute ospf 200